Wire-fastener.



No. 874,552. PATENTED DEC. 24, 1907. S. WILBURN & T. E.-SMITH.

WIRE FASTENER.

APPLICATION FILED SEPT. 9, 1907.

attozuu p SYLVESTER WILBURN THOMAS SMITH, OF TUNIS, TEXAS.

. WIRE-FASTENER.

' Specification of Letters Patent.

, Application filed septembcr 9.1907. serial No. 392.035.

' Patented Dec. 24, 1907.

To all whom it may concern:

Be it known that we, SYLvEsTen Wu, BURN and THOMAS E. SMITH, citizens of the.

United States, 'residing at Tunis, in the county of Burleson and State of Texas, have invented certain new and useful Tm rove' ments in Wire-Fasteners; andwe do eclare the following to be a full, clear, and exact description of the invention, such as will enform 0 able others skilled in the art to which itappertains to make and use the same.

This invention relates to im rovements in wire fasteners for telegraph po es.

The object of the invention is to providea fastener of this character by means of which telegra h or telephone wires or any other fcables may be quickly fastened to the arms of the telegraph poles without the use of tie wires.

A further object is to provide a device of this character by means of which the wires will-be automatically clamped into engagement with the fastener.

With'the foregoing and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be hereinafter described and claimed.

In the accom anying drawings, Figure 1 is g a side view of t e fastener showing-the same applied to the arm of a telegraph pole; Fig. 2 is a vertical sectional view through the arm of a telegraph ole showing a side view of the fastener at rig t angles to that shown in Fig. 1 g and Fig 3 is a vertical sectional view of the fastener taken on the line 3 -3 of Fig. 1.

Referring more particularly to the drawings, 1. designates the fastener whichcomprises a head 2 having on its lower end an annular arm-engaging flange 3. Formed integralwith the head 3 is a downwardly rojecting fastening bolt or shank 4 whic is adapted to beinserted through the arm of the telegraph pole and is threaded on its lower end to receive a clam ing nut 5.-

On the upper end of the ead 2 is formed a reduced clamp-engaging portion 6 upon which is adaptedto be secured a wire clamp sov 7 comprising a bracket having a horizontally disposed base portion 8, a tapered opening formed therein to receive the reduced upper end 6 of the head 2. Around said reduced upper end 6 of the head and the tapered hole in the base 8 is arranged. a sleeve of insulating material 9 by means of which the I aampv is insulated from the head and shank ofthe fastener.

The upper surface of the base 8 is slightly curved or rounded off at its outer edges and is'pro'vided with a series of corrugations 10. One end of the base plate 8 is curved upwardly to form a detent 12 while at the opposite end of the plate is formed an upwardly prOjectingright angular arm 13 to the upper end of which is pivotally connected the movable member 1 1 of the clamp.

The member 14 com rises a head 15, the lower side ofwhich' is s ightly curved and is provided with a series of corrugations 16,

said corrugated lower side of the member 14- being adapted to coact with the corrugated upfplpr side of thebase-plate 8 whereby a wire is mly clamped between the same. The up per end of the member 14 is provided with a handle 17 by means of which said member may be swung laterally to disengage the head 15 from the wire, thus releasing the same.

In practice, the wire to be fastened is stretched across the curved upper surface of the base plate" 8 and the clamping member is engaged with the upper side of the wire, after which the stretched wire is slackened to permit the same to retract to a slight degree,

said retraction causing the upper member of the clamp to' bev drawn downwardly, thus binding the same into tight engagement'with the wire and holding the latter between the corrugated surface of the head 15 and the curved upper side of the base plate 8.

From the fore oing description, taken in connection with. the accompanyin drawings, the construction and operation of the invention will be readily understoodwithout requiring a more extended explanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the prin-' ciple or sacrificing any of the 'advantagesof 'the'invention, as-defined by the appended claims.

Having thus described 'my invention, what I claim as new, is 1. A fastening device for tele raph wires and the like comprising a heaf, means to secure the same to the arm of a telegraph pole, a clamping member secured to and in-- sulated from said head, means whereby the wire may be automatically fastened by said clamp, substantially as described.

2. A wire fastener of the character described comprising a head, a shank or bolt formed on said head whereby the same is secured to the arm of the telegraph pole, a clamping device secured to and insulated from said head, said clamping-device comprising a base portion having a corrugated upper surface and a pivotally mounted clamping head having a corrugated lower surface to coact with the corrugated surface of said base, substantially as described.

A wire fastener of the character described, comprising a head having an annular flange on its lower end, a fastening bolt or shank formed on the lower end of said head, a clamping device secured to and insulated from the upper end of the head, said clamping'device comprising a base having a curved and corrugated upper surface, an u wardly projecting detent formed on one en of said the corrugated upper surface of the base plate and a handle portion on the upper end of said pivoted clamping member, substantiallyas described. v

In testimony whereof we have hereunto set our hand in presence of two subscribing witnesses.

SYLVESTER WILBURN. THOMAS E. SMITH.

YVitnesses:

' F. O. HENsLEE, 'J. E. HENsLEn. 

